ClassID:

86446

C02F11/122 - CPC Classification

Classification description:

Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses

Recent Application in this class:
#1
20260070854
2026-03-12

SYSTEM AND PROCESS FOR REDUCING PFAS AND MICROPLASTICS IN BIOSOLIDS USING HYDRODYNAMIC CAVITATION AND FOAM FRACTIONATION

#2
20260042693
2026-02-12

CONDITIONING METHOD FOR DEEP DEWATERING OF SLUDGE FROM MUNICIPAL WASTEWATER TREATMENT PLANTS

#3
20260008706
2026-01-08

Utilization of Micro Hydroflocs for the Effective and Complete Removal of Long and Short Chain PFAS Molecules from Contaminated Water

#4
20250340473
2025-11-06

SYSTEM AND PROCESS FOR REDUCING PFAS AND MICROPLASTICS IN BIOSOLIDS USING HYDRODYNAMIC CAVITATION AND FOAM FRACTIONATION

#5
20250333659
2025-10-30

CHEMICAL LOOPING GASIFICATION METHOD FOR IRON-RICH SLUDGE

#6
20250320146
2025-10-16

DEWATERING DEVICE AND RELATED METHODS

#7
20250230085
2025-07-17

SYSTEMS, METHODS, AND APPARATUS FOR MECHANICALLY REMOVING LIQUID FROM MATERIAL

#8
20250171701
2025-05-29

METHOD FOR UPGRADING COAL SLIME THROUGH SYNERGISTIC DEHYDRATION

#9
20250154039
2025-05-15

Biofilm Carrier Media in Moving Bed Biofilm Reactor Processes

#10
20250090982
2025-03-20

METHOD AND DEVICE FOR FILTER RESIDUE TREATMENT

#11
20250042798
2025-02-06

SYNERGISTIC DEVICE FOR RESOURCE AND ENERGY RECOVERY, POLLUTION REDUCTION AND CARBON REDUCTION OF KITCHEN WASTE

#12
20250026876
2025-01-23

CATIONIC EMULSION TERPOLYMER FOR INCREASING CAKE SOLIDS

#13
20240425398
2024-12-26

Biofilm Carrier Media in Moving Bed Biofilm Reactor Processes

#14
20240400398
2024-12-05

METHOD OF RECYCLING SILICON WASTEWATER AND METHOD OF MANUFACTURING SEMICONDUCTOR BY USING THE SAME

#15
20240375986
2024-11-14

METHOD FOR CONDITIONING ADVANCED ANAEROBIC DIGESTION SLUDGE BY DEEP DEHYDRATION BASED ON PARTICLE SIZE CONTROL, USE THEREOF AND FLOC PARTICLE

#16
20240375985
2024-11-14

SLUDGE AND KITCHEN WASTE COLLABORATIVE DIGESTION PROCESS COUPLED WITH INTERMEDIATE THERMAL HYDROLYSIS

#17
20240351931
2024-10-24

Method and System for Fine Particulate Removal and Processing from a Coal Combustion Residual Surface Impoundment

#18
20240316482
2024-09-26

ADJUSTABLE RECEPTACLES

#19
20240308909
2024-09-19

Methods, systems for dehydrating gasification fine slags, and media thereof

#20
20240300837
2024-09-12

VOLUME REDUCTION SOLIDS TREATMENT SYSTEM

#21
20240246846
2024-07-25

TREATING WASTEWATER FOR REUSE

#22
20240140837
2024-05-02

Treatment of Liquid Streams Containing High Concentrations of Solids Using Ballasted Clarification

#23
20240092670
2024-03-21

SYSTEMS AND METHODS FOR REMOVAL OF METHANE FROM A METHANE CONTAINING DIGESTATE/FLUIDS/SUBSTRATES FROM METHANE PRODUCING SYSTEMS

#24
20240091678
2024-03-21

MECHANICAL DEMOISTURIZING OF PARTIALLY-DECOMPOSED ORGANIC MATERIAL

#25
20240067549
2024-02-29

Domestic waste incineration fly ash treatment system

#26
20240034661
2024-02-01

System and method for extracting carbon source from sewage sludge in sewer pipes through online organic and inorganic component separation

#27
20230365449
2023-11-16

FLUIDIZED BED SEPARATION METHOD AND DEVICE FOR METHANOL-TO-OLEFINS QUENCHED WATER

#28
20230357067
2023-11-09

CATIONIC EMULSION TERPOLYMER TO INCREASE CAKE SOLIDS IN CENTRIFUGES

#29
20230323225
2023-10-12

HYDROTHERMAL CARBONISATION METHOD

#30
20230242430
2023-08-03

Integrated device and method for treating toxic and refractory wastewater

#31
20230174403
2023-06-08

Systems, methods, and apparatus for mechanically removing liquid from material

#32
20230145474
2023-05-11

METHOD OF DEWATERING

#33
20230139310
2023-05-04

Wastewater treatment equipment and treatment method thereof

#34
20230125729
2023-04-27

METHOD FOR THE AEROBIC AND ANAEROBIC CULTIVATION OF MICROORGANISMS, METHOD FOR THE PRODUCTION OF A PREPARATION FOR CLEANING CONTAMINATED LIQUIDS AND SURFACES, METHOD FOR CLEANING CONTAMINATED LIQUIDS AND SURFACES AND METHOD FOR CLEANING CONTAMINATED SURFACES

#35
20230067100
2023-03-02

Fast flow dewatering trailer apparatus and method of use

#36
20230008207
2023-01-12

Method for recovering phosphorus from sludge rich in chemical phosphorus precipitates using high-protein biomass waste

#37
20220371064
2022-11-24

Solid waste treatment system and method

#38
20220324739
2022-10-13

Tailings settling-dewatering-solidifying device and experimental method thereof

#39
20220306509
2022-09-29

Treatment of tailings with lime at elevated PH levels

#40
20220274146
2022-09-01

Methods and systems for processing dredge spoils

#41
20220227653
2022-07-21

Titania-based treatment solution and method of promoting precipitation and removal of heavy metals from an aqueous source

#42
20220169547
2022-06-02

Method for reducing heavy metal content of sludge-based biocoke

#43
20220112111
2022-04-14

SYSTEM AND METHOD OF TREATING WASTEWATER USING A PORTABLE, NON-BIOLOGICAL, CYCLIC SEWAGE TREATMENT PLANT

#44
20220105448
2022-04-07

Portable particulate filtering system and method

#45
20220016552
2022-01-20

Slit spiral tube for self-cleaning pressure filters and a slot self-cleaning pressure filter with such a slit tube

#46
20210332195
2021-10-28

Solid-liquid separation device and method for washing lignocellulosic solid residue

#47
20210292207
2021-09-23

Fast flow dewatering trailer apparatus and method of use

#48
20210253462
2021-08-19

Multi plate screw press sludge dewatering machine

#49
20210236965
2021-08-05

Separation device and method to separate contaminants from contaminated water

#50
20210221725
2021-07-22

Treatment method and device for dehydration of organic sludges

#51
20210188706
2021-06-24

Methods and systems for multi-stage encapsulation of wastes and production thereof into aggregate products

#52
20210146298
2021-05-20

Flue gas cleaning solution purification system and method thereof

#53
20210129048
2021-05-06

Manual filter press with displaceable follower stop

#54
20210047204
2021-02-18

Biofilm carrier media in moving bed biofilm reactor processes

#55
20210037796
2021-02-11

Recirculating aquaculture system for shrimp culture through SBR wastewater treatment

#56
20210001345
2021-01-07

System and method for drying and milling spent grain into flour

#57
20200406268
2020-12-31

Methods and systems for sizing waste solids

#58
20200392029
2020-12-17

Method and system for treatment of spent chloroaluminate ionic liquid catalyst and alkaline wastewater

#59
20200331787
2020-10-22

Method for recovering phosphorus from sludge and plant thereof

#60
20200299166
2020-09-24

Methods and systems for removing nitrates in Zero Liquid Discharge applications

#61
20200298151
2020-09-24

Solid-liquid separator and solid-liquid separation system

#62
20200269170
2020-08-27

Dynamic separation and filtration

#63
20200255308
2020-08-13

Treatment of Liquid Streams containing High concentration of Solids utilizing Ballasted Floc Technology

#64
20200239349
2020-07-30

Treatment of oil sands tailings with lime at elevated PH levels

#65
20200239348
2020-07-30

Methods and systems for processing dredge spoils

#66
20200222953
2020-07-16

Solid waste treatment system and method

#67
20200207654
2020-07-02

Apparatus and method to concentrate and dry generally organic solids and produce purified water therefrom

#68
20200129894
2020-04-30

Adjustable receptacles

#69
20200095150
2020-03-26

Automated waste water recycling system using advanced electro-coagulation unit

#70
20200095149
2020-03-26

Automated waste water recycling system using advanced electro-coagulation unit

#71
20200048132
2020-02-13

Electromagnetic-force-based dewatering for sewage sludge reduction

#72
20190376154
2019-12-12

Filter media for the removal of particles, ions, and biological materials, and decolorization in a sugar purification process, and use thereof

#73
20190367382
2019-12-05

System, device and method for production of high-nitrogen organic liquid fertilizer from ammonia rich wastewaters and digester effluents

#74
20190322554
2019-10-24

Titania-based treatment solution and method of promoting precipitation and removal of heavy metals from an aqueous source

#75
20190276342
2019-09-12

Treatment method and treatment apparatus for waste water containing sulfuric acid, fluorine and heavy metal ions

#76
20190224592
2019-07-25

PORTABLE PARTICULATE FILTERING SYSTEM AND METHOD

#77
20190210905
2019-07-11

DOSAGE OPTIMIZATION METHOD OF CHEMICAL CONDITIONER FOR DEEP DEWATERING OF SLUDGE

#78
20190185359
2019-06-20

Method for treating wastewater using a portable, non-biological, cyclic sewage treatment plant

#79
20190135672
2019-05-09

Concentration of wastewater to reduce flow rate, cost, and footprint of treatment system

#80
20190118121
2019-04-25

Arrangement and method for separating out and removing screenings from wastewater

#81
20190055149
2019-02-21

Treatment of oil sands tailings with lime at elevated pH levels

#82
20190031547
2019-01-31

Apparatus and method for waste and water treatment

#83
20180346363
2018-12-06

Electromagnetic-force-based dewatering for sewage sludge reduction

#84
20180346362
2018-12-06

Multi plate screw press sludge dewatering machine

#85
20180334403
2018-11-22

Method for managing air streams from mechanical dehydration of sludge, and corresponding device

#86
20180304324
2018-10-25

Method and device for processing solid waste

#87
20180297881
2018-10-18

Sludge dewatering device

#88
20180297877
2018-10-18

Waste water treatment method and apparatus

#89
20180282646
2018-10-04

System for the treatment of organic waste

#90
20180257967
2018-09-13

Systems and methods for using chlorine dioxide to enhance drying

#91
20180201528
2018-07-19

Flocculation of high-solids mineral slurries

#92
20180179063
2018-06-28

Method and facility for drying by means of hydrothermal carbonization and filtering

#93
20180162762
2018-06-14

Method for ultra-dehydrating thickened or pasty biomass products, and equipment for implementing the method

#94
20180099890
2018-04-12

Automated wastewater treatment system and methods

#95
20180008919
2018-01-11

SOLIDS HANDLING IN WATER TREATMENT SYSTEMS AND ASSOCIATED METHODS

#96
20170369337
2017-12-28

ENHANCED BRINE CONCENTRATION WITH OSMOTICALLY DRIVEN MEMBRANE SYSTEMS AND PROCESSES

#97
20170296946
2017-10-19

Dynamic separation and filtration

#98
20170259197
2017-09-14

Dynamic separation and filtration

#99
20170189881
2017-07-06

Reversible Microcapsule Filter Cake

#100
20170081227
2017-03-23

Concentrating of wastewater to reduce flow rate, cost, and footprint of treatment system

#101
20160355426
2016-12-08

MICROWAVE PROCESSING OF WASTEWATER SLUDGE

#102
20160355414
2016-12-08

Method of removing hydrogen-sulfide from water

#103
20160346788
2016-12-01

Organics recovery from dry fraction

#104
20160304380
2016-10-20

Sludge treatment system

#105
20160229705
2016-08-11

Methods and systems for producing treated brines for desalination

#106
20160200614
2016-07-14

Biogenic flocculant composition to enhance flocculation and dewaterability of chemically enhanced primary treatment sludge

#107
20160115064
2016-04-28

Method and facility for the forced dewatering of a sludge of saline residues

#108
20160115062
2016-04-28

Mobile wastewater treatment system

#109
20160052815
2016-02-25

Method for ultra-dehydrating thickened or pasty biomass products, and equipment for implementing the method

#110
20160023934
2016-01-28

Portable, non-biological, cyclic sewage treatment plant

#111
20150353404
2015-12-10

Methods and systems for processing dredge spoils

#112
20150329398
2015-11-19

Method for treating organic laden produced water

#113
20150239763
2015-08-27

Biogenic flocculant composition to enhance flocculation and dewaterability of chemically enhanced primary treatment sludge

#114
20150183674
2015-07-02

APPARATUS FOR WASTE-WATER FILTRATION

#115
20150144573
2015-05-28

Consolidation and dewatering of particulate matter with protein

#116
20150060368
2015-03-05

Treatment of gas well production wastewaters

#117
20140360093
2014-12-11

Procedure and equipment for the production of solid fuel from wastewater sludge

#118
20140339173
2014-11-20

Mining apparatus with water reclamation system

#119
20140286854
2014-09-25

Treatment of gas well hydrofracture wastewaters

#120
20140166466
2014-06-19

Desalination system using a filter press

#121
20140158642
2014-06-12

Method of manufacturing filter aid

#122
20130292115
2013-11-07

STEAM GENERATOR BLOWDOWN MANAGEMENT

#123
20130200010
2013-08-08

SLUDGE TREATMENT SYSTEM AND METHOD

#124
20130146520
2013-06-13

Filtration dehydration apparatus

#125
20130134092
2013-05-30

Wastewater treatment apparatus to achieve class B biosolids using chlorine dioxide

#126
20130134090
2013-05-30

Digestion of biosolids in wastewater

#127
20130048575
2013-02-28

SYSTEMS AND METHODS FOR MOBILE FRACKING WATER TREATMENT

#128
20120312177
2012-12-13

Sludge dehydrating apparatus

#129
20120305460
2012-12-06

Apparatus for waste-water filtration

#130
20120292259
2012-11-22

SYSTEM AND METHOD FOR TREATMENT OF PRODUCED WATERS CONTAINING GEL

#131
20120247165
2012-10-04

Method of integration of concentration-dehydration and aerobic air-drying of sewage sludge

#132
20120149076
2012-06-14

INTEGRATION OF FERMENTAITON WITH MEMBRANE

#133
20120145643
2012-06-14

High efficiency water-softening process

#134
20120118821
2012-05-17

Process for treatment of wastewater with a modular biological fluidized bed reactor system

#135
20120097609
2012-04-26

METHODS AND SYSTEMS FOR TREATMENT OF AQUEOUS OILY SOLUTIONS

#136
20120091006
2012-04-19

Electro-penetrative type sludge weight reducing apparatus

#137
20110259807
2011-10-27

FILTERING AND CONDENSING APPARATUS OF SUCTION TYPE

#138
20110259806
2011-10-27

Filtering and condensing apparatus of suction type

#139
20110233131
2011-09-29

FILTERING AND CONDENSING APPARATUS OF SUCTION TYPE

#140
20110186417
2011-08-04

Desalination method using a filter press

#141
20110180424
2011-07-28

Water purification using conveyor sweep

#142
20110084029
2011-04-14

Waste treatment system

#143
20100219124
2010-09-02

System and method for producing methane, an organic based fertilizer and usable water from animal waste

#144
20100218573
2010-09-02

System and method for producing an organic based fertilizer and usable water from animal waste

#145
20100199514
2010-08-12

OPTIMIZED APPARATUS AND METHOD FOR MANURE MANAGEMENT

#146
20100125044
2010-05-20

Treatment of gas well hydrofracture wastewaters

#147
20100089809
2010-04-15

Integrated utility system

#148
20090107924
2009-04-30

Modular biological fluidized bed reactor system

#149
20070163938
2007-07-19

Sewage slurry separation system

#150
20070102360
2007-05-10

POLYMER BLENDING SYSTEM

#151
20060102564
2006-05-18

SYSTEM OF SLUDGE DEWATERING AND METHOD FOR FILTER CLOTH AUTOMATIC WASHING OF FILTER PRESS MACHINE

#152
19055052
2025-11-04

System and process for reducing PFAS and microplastics in biosolids using hydrodynamic cavitation and foam fractionation

#153
17565169
2022-05-31

Method for anaerobically fermenting organic solid waste

#154
15973731
2018-08-21

Device for separating water from sludge